Radix Curcumae. Part used: Root. Known as Turmeric Tuber. Entering meridians: Heart, Liver and Lung. Yu Jin invigorates the blood, dispels blood stasis, regulates Qi flow, speeds healing of chronic sores, alleviates pain, clears heat, cools the blood, opens orifices, benefits the gallbladder and reduces jaundice. All Phoenix Medical dry authentic herbs and concentrated herbal granules are free of sulphur, herbicides and pesticides.